WO2022134523A1 - 洗衣机 - Google Patents

洗衣机 Download PDF

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Publication number
WO2022134523A1
WO2022134523A1 PCT/CN2021/103923 CN2021103923W WO2022134523A1 WO 2022134523 A1 WO2022134523 A1 WO 2022134523A1 CN 2021103923 W CN2021103923 W CN 2021103923W WO 2022134523 A1 WO2022134523 A1 WO 2022134523A1
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WO
WIPO (PCT)
Prior art keywords
water
unit
ultrasonic generator
supply
washing
Prior art date
Application number
PCT/CN2021/103923
Other languages
English (en)
French (fr)
Inventor
荒井英行
税所贵史
Original Assignee
青岛海尔洗衣机有限公司
Aqua株式会社
海尔智家股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛海尔洗衣机有限公司, Aqua株式会社, 海尔智家股份有限公司 filed Critical 青岛海尔洗衣机有限公司
Publication of WO2022134523A1 publication Critical patent/WO2022134523A1/zh

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F19/00—Washing machines using vibrations for washing purposes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/34—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling

Definitions

  • the present invention relates to a washing machine.
  • Patent Document 1 describes a washing machine in which an ultrasonic cleaning device is arranged around a laundry inlet on an upper panel, for example, on the front side of the inlet.
  • the ultrasonic cleaning apparatus includes: a water storage tank capable of storing water; and an ultrasonic wave generating unit having an ultrasonic wave generator located directly above the water storage tank.
  • the dirt adhering part of the object to be washed is placed in the water storage tank containing water, and the washing operation is started.
  • the ultrasonic energy generated by the ultrasonic generator acts on the dirt adhering part soaked in water to peel off the dirt.
  • Patent Document 1 Japanese Patent Laid-Open No. 2018-68435
  • an object of the present invention is to provide a washing machine that can suppress the washing operation in a state where the washing effect of the object to be washed is not exhibited due to insufficient water.
  • the washing machine of the main aspect of the present invention is provided with: a water storage bucket, which can store water, and the object to be washed is immersed in the water; an ultrasonic generator, which generates ultrasonic waves; a water supply part, which supplies water to be stored in the water storage bucket; arranged around the ultrasonic generator; and a control unit that controls the ultrasonic generator and the water supply unit.
  • the ultrasonic generator is brought into contact with the water permeating the object to be cleaned, and the ultrasonic wave is propagated to the water.
  • the control unit operates the ultrasonic generator in a state in which water is stored in the water tank, and causes the water supply unit to operate based on the temperature detected by the temperature detection unit during the operation of the ultrasonic generator. Water is supplied to replenish the water storage tank.
  • the ultrasonic generator is cooled by the water.
  • the water in the water storage tub is insufficient, the water cannot sufficiently penetrate the object to be washed, and the water contained in the object to be washed does not come into contact with the tip of the ultrasonic generator. As a result, the ultrasonic generator is not cooled by the water, so the temperature of the ultrasonic generator increases.
  • the washing machine of this aspect when it is determined that the water in the water tank is insufficient based on the temperature detected by the temperature detection unit during the operation of the ultrasonic generator, water is supplied from the water supply unit to replenish the water in the water tank. As a result, it is possible to suppress the washing operation in a state where the washing effect of the object to be washed is not exhibited due to insufficient water.
  • control unit may have a structure in which the reference temperature is detected by the temperature detection unit before the operation of the ultrasonic generator or in the initial stage of operation, and the temperature is detected by the temperature detection unit during the operation of the ultrasonic generator.
  • the temperature detected by the temperature detection unit obtains a temperature rise value with respect to the reference temperature, and when the temperature rise value exceeds a threshold value, the water supply unit supplies water.
  • the temperature rise value by using the temperature rise value, it is not easily affected by the temperature before the operation of the ultrasonic generator, which may vary depending on the ambient temperature, etc., so that the water shortage can be accurately determined and the water can be replenished by the water supply unit.
  • the washing machine of this aspect it is possible to further include a storage portion that stores water to be supplied to the water storage tub.
  • the water supply unit supplies water to the storage unit, and when the water in the water storage tub decreases, water is replenished from the storage unit to the water storage tub.
  • the control unit causes the water supply unit to supply water to the storage unit based on the temperature detected by the temperature detection unit during the operation of the ultrasonic generator.
  • control unit may further employ a configuration in which the water supply unit supplies water to the storage unit based on the elapse of a predetermined time from the start of the operation of the ultrasonic generator.
  • control unit may be configured to control the detergent supply unit so that the supply amount ratio of the detergent when water is supplied to the storage unit based on the elapse of the predetermined time is based on the The supply amount of the detergent when the temperature detected by the temperature detection unit is supplied with water to the storage unit is small.
  • the cleaning power is improved by applying the force of the detergent. Furthermore, since the supply amount of the detergent when replenishing based on the lapse of a predetermined time is set to be smaller than the supply amount of the detergent when replenishing based on the detected temperature, it is possible to suppress waste of the detergent.
  • the present invention it is possible to provide a washing machine capable of suppressing the washing operation in a state where the washing effect of the object to be washed is not exhibited due to insufficient water.
  • FIG. 1 is a side sectional view of the fully automatic washing machine according to the embodiment.
  • FIG. 2 is a schematic diagram showing the configuration of the water supply unit according to the embodiment.
  • FIGS. 3( a ) is a perspective view of the ultrasonic cleaning apparatus and the upper panel when the ultrasonic cleaning unit and the water storage unit according to the embodiment are in a state in which the ultrasonic cleaning unit and the water storage unit are pulled out from the accommodating unit.
  • FIGS. 3( b ) and ( c ) are perspective views of main parts of the ultrasonic cleaning device and the upper panel when the ultrasonic cleaning portion and the water storage portion of the embodiment are in a state of being accommodated in the accommodating portion.
  • FIG 4 is a perspective view of the ultrasonic cleaning apparatus in a state in which the water storage unit according to the embodiment is detached from the main body.
  • FIG 5 is a side sectional view of an ultrasonic cleaning unit and a main body of the embodiment.
  • FIG. 6( a ) is a perspective view showing a state in which the fixing member of the embodiment has passed through the upper portion of the ultrasonic generator
  • FIG. 6( b ) is a cross-sectional view taken along line AA′ of FIG. 6( a ).
  • FIG. 7 is a side cross-sectional view of the ultrasonic cleaning device, the storage tank, the supply valve, the supply nozzle, and the drain receiving portion when the ultrasonic cleaning portion and the water storage portion are accommodated in the storage portion according to the embodiment.
  • FIG. 8 is a side cross-sectional view of the ultrasonic cleaning device, the storage tank, the supply valve, the supply nozzle, and the drain receiving portion when the ultrasonic cleaning portion and the water storage portion are pulled out from the storage portion according to the embodiment.
  • FIG. 9 is a perspective view of a storage tank, a supply valve, and a supply nozzle according to the embodiment.
  • FIG. 10 is a block diagram showing the configuration of the fully automatic washing machine according to the embodiment.
  • FIG. 11 is a flowchart showing a process of replenishing the washing water to the storage tank according to the embodiment.
  • FIG. 12 is a flowchart showing a process of replenishing the washing water to the storage tank in Modification 1.
  • FIG. 1 is a side sectional view of the fully automatic washing machine 1 .
  • the fully automatic washing machine 1 includes a case 10 that constitutes an outer contour.
  • the box 10 includes a rectangular cylindrical body portion 11 with open upper and lower surfaces, an upper panel 12 covering the upper surface of the body portion 11 , and a footrest 13 supporting the body portion 11 .
  • the upper panel 12 is formed with a laundry inlet 14 .
  • the input port 14 is covered with an openable and closable upper cover 15 .
  • the control unit 16 is arranged inside the front part of the upper panel 12 . The control unit 16 controls the washing operation of the fully automatic washing machine 1 and the washing operation of the ultrasonic cleaning device 50 to be described later.
  • the outer tub 20 with the upper surface opened is elastically suspended and supported in the box 10 by four suspension bars 21 with anti-vibration devices.
  • a washing and dewatering tub 22 serving as an inner tub is arranged inside the outer tub 20 .
  • the upper surface of the washing and dewatering tub 22 is open, and rotates around a rotating shaft extending in the vertical direction.
  • a large number of dewatering holes 22a are formed on the inner peripheral surface of the washing and dewatering tub 22 over the entire circumference.
  • a balance ring 23 is provided on the upper part of the washing and dewatering tub 22 .
  • a pulsator 24 is arranged at the bottom of the washing and dewatering tub 22 . On the surface of the pulsator 24, a plurality of vanes 24a are radially provided.
  • a drive unit 30 that generates torque for driving the washing and dewatering tub 22 and the pulsator 24 is disposed on the outer bottom of the outer tub 20 .
  • the drive unit 30 includes a drive motor 31 and a transmission mechanism portion 32 .
  • the transmission mechanism part 32 has a clutch mechanism 32a, and by the switching operation by the clutch mechanism 32a, the torque of the drive motor 31 is only transmitted to the pulsator 24 during the washing process and the rinsing process, and only the pulsator 24 is rotated.
  • the torque of the driving motor 31 is transmitted to the pulsator 24 and the washing and dehydrating tub 22, so that the pulsating wheel 24 and the washing and dehydrating tub 22 rotate integrally.
  • the drain port part 20a is formed in the outer bottom part of the outer tub 20, the drain port part 20a is formed.
  • the drain valve 40 is provided in the drain port part 20a.
  • the drain valve 40 is connected to the drain hose 41 .
  • the drain valve 40 is opened, the water stored in the washing and dewatering tub 22 and the outer tub 20 is discharged to the outside of the machine through the drain hose 41 .
  • An overflow port 20b is formed in the upper part of the outer tub 20 .
  • the water is discharged from the overflow port 20b.
  • An overflow receiving portion 25 is provided on the outer surface of the outer tub 20 so as to cover the overflow port 20b.
  • One end of the overflow pipe 26 is connected to the bottom of the overflow receiving portion 25 .
  • the other end of the overflow pipe 26 is connected to the drain hose 41 .
  • the water discharged from the overflow port 20 b is received by the overflow water receiving portion 25 , and flows to the drain hose 41 through the overflow pipe 26 .
  • the ultrasonic cleaning device 50 is arranged in the approximate center of the rear portion of the upper panel 12 .
  • the ultrasonic cleaning device 50 mainly performs a cleaning operation for removing contaminants adhering to a part of the object to be cleaned before the fully automatic washing machine 1 performs washing.
  • a storage tank 60 is arranged behind the ultrasonic cleaning device 50 , and a drain receiving portion 70 is arranged below the ultrasonic cleaning device 50 .
  • the detergent-containing water to be supplied to the water storage tub 210 of the ultrasonic cleaning device 50 is stored in the storage tank 60 as washing water.
  • the drain receiving portion 70 receives the water drained from the water storage tub 210 .
  • a drain hole 71 through which the received water is discharged is formed in the drain receiving portion 70 .
  • One end of the drain pipe 72 is connected to the discharge hole 71 .
  • the other end of the drain pipe 72 is connected to the upper part of the overflow pipe 26 .
  • a water supply unit 80 for supplying tap water into the washing and dewatering tub 22 is arranged at the rear of the upper panel 12 .
  • FIG. 2 is a schematic diagram showing the configuration of the water supply unit 80 .
  • the water supply unit 80 has a water supply valve 81 .
  • the water supply valve 81 is a so-called double valve, and includes a main valve 82 and a sub-valve 83 as solenoid valves.
  • the water inlet 81a of the water supply valve 81 is connected to a faucet via a water supply hose not shown.
  • a main water supply passage 84 is connected to the outlet of the main valve 82 .
  • the main water supply path 84 is connected to a water filling tank 85 located at the upper part of the washing and dewatering tub 22 .
  • a water injection port 85 a is formed on the bottom surface of the water injection tank 85 .
  • the water supply unit 80 includes an automatic injection mechanism 90 for automatically injecting a liquid detergent, which is a type of liquid detergent for washing, into the washing and dewatering tub 22 .
  • the automatic injection mechanism 90 also has a function of supplying the washing water to the storage tank 60 .
  • the water supply unit 80 corresponds to the water supply unit of the present invention, and the automatic injection mechanism 90 corresponds to the detergent supply unit of the present invention.
  • the automatic feeding mechanism 90 includes a detergent box 91 , a supply pipe 92 , a first three-way valve 93 , a secondary water supply passage 94 , a detergent supply passage 95 , a second three-way valve 96 , a washing water supply passage 97 , and a supply pump 98 .
  • the automatic feeding mechanism 90 further includes a sub-valve 83 of the water supply valve 81 .
  • the liquid detergent is stored in the detergent box 91 in the state of a stock solution.
  • the supply pipe 92 guides the liquid detergent of the detergent box 91 to one inlet of the first three-way valve 93 .
  • the sub-water supply passage 94 is connected to the outlet of the sub-valve 83 and the other inlet of the first three-way valve 93 .
  • a detergent supply path 95 is connected to the outlet of the first three-way valve 93 .
  • the detergent supply path 95 is connected to the water filling tank 85 .
  • the first three-way valve 93 can be switched between a state in which the supply pipe 92 and the detergent supply passage 95 communicate with each other and a state in which the auxiliary water supply passage 94 and the detergent supply passage 95 are communicated.
  • a second three-way valve 96 is provided in the detergent supply passage 95 .
  • An upstream supply passage 95 a of the detergent supply passage 95 is connected to an inlet of the second three-way valve 96
  • a downstream supply passage 95 b of the detergent supply passage 95 is connected to one outlet of the second three-way valve 96 .
  • one end of the washing water supply path 97 is connected to the other outlet of the second three-way valve 96.
  • the other end of the washing water supply path 97 is connected to the storage tank 60 .
  • the second three-way valve 96 can be switched between a state in which the upstream supply passage 95a and the downstream supply passage 95b are communicated, and a state in which the upstream supply passage 95a and the washing water supply passage 97 are communicated.
  • the supply pump 98 is arrange
  • a piston pump can be used, for example.
  • FIG. 3( a ) is a perspective view of the ultrasonic cleaning apparatus 50 and the upper panel 12 when the ultrasonic cleaning unit 100 and the water storage unit 200 are in a state in which the ultrasonic cleaning unit 100 and the water storage unit 200 are pulled out from the accommodating unit 17 .
  • 3( b ) and ( c ) are perspective views of main parts of the ultrasonic cleaning apparatus 50 and the upper panel 12 when the ultrasonic cleaning unit 100 and the water storage unit 200 are accommodated in the accommodating unit 17 .
  • the illustration of the cover 19 is abbreviate
  • the upper panel 12 is provided with an accommodating portion 17 for accommodating the ultrasonic cleaning apparatus 50 in the center portion of the rear.
  • the front of the accommodating portion 17 is opened as an entrance and exit 18 .
  • a cover 19 is provided at the entrance and exit 18 .
  • the ultrasonic cleaning device 50 includes an ultrasonic cleaning unit 100 , a water storage unit 200 , and a main body unit 300 .
  • the ultrasonic cleaning unit 100 has an ultrasonic generator 110 that generates ultrasonic waves.
  • the main body portion 300 holds the ultrasonic cleaning portion 100 .
  • the water storage part 200 is attached to the main body part 300 and is located below the ultrasonic generator 110 .
  • the water storage portion 200 is provided with a water storage tub 210 that stores the washing water.
  • the ultrasonic cleaning device 50 is in a state in which the ultrasonic cleaning unit 100 and the water storage unit 200 are pulled forward from the accommodating unit 17 , and the ultrasonic cleaning unit 100 and the water storage unit 200 are pulled forward from the accommodating unit 17 .
  • the inside of the input port 14 protrudes.
  • the ultrasonic cleaning device 50 is in a state in which the ultrasonic cleaning portion 100 and the water storage portion 200 are accommodated in the accommodating portion 17 .
  • the access port 18 is closed by the cover 19 .
  • FIG. 4 is a perspective view of the ultrasonic cleaning apparatus 50 in a state in which the water storage unit 200 is separated from the main body unit 300 .
  • FIG. 5 is a side sectional view of the ultrasonic cleaning unit 100 and the main body 300 .
  • the ultrasonic cleaning unit 100 is held by the main body part 300 , and the water storage part 200 is detachably attached to the main body part 300 .
  • the ultrasonic cleaning unit 100 includes an ultrasonic generator 110 and a casing 120 .
  • the ultrasonic generator 110 includes an ultrasonic vibrator 111 and a vibration horn 112 combined with the ultrasonic vibrator 111 .
  • the ultrasonic generator 110 generates ultrasonic waves from the tip of the vibration horn 112 by the high-frequency vibration of the ultrasonic vibrator 111 .
  • the casing 120 has an arm shape whose front end portion 121 is long in the front-rear direction and bent downward.
  • the ultrasonic generator 110 is arranged in the front part of the casing 120 .
  • the ultrasonic generator 110 is pressed from the upper side by the frame-shaped fixing member 130 .
  • the front end portion of the vibration horn 112 is exposed from the opening portion 122 of the housing 120 .
  • the rear portion 123 of the housing 120 is fixed to the upper portion of the main body portion 300 .
  • a handle 201 is formed on the front surface of the water storage unit 200 .
  • the water storage tub 210 having a shape that follows the outer shape of the water storage portion 200 is formed in the water storage portion 200 .
  • a drain port 211 is formed in the lower portion of the rear surface of the water storage tub 210 .
  • the drain port 211 is blocked by the valve body 220 .
  • the valve movable member 230 is connected to the valve body 220 .
  • the rear portion 231 of the valve movable member 230 protrudes rearward of the water storage portion 200 .
  • the valve movable member 230 is urged in a rearward direction in which the valve body 220 is closed by a spring (not shown).
  • FIG. 6( a ) is a perspective view showing a state in which the fixing member 130 has passed through the upper portion of the ultrasonic generator 110
  • FIG. 6( b ) is a cross-sectional view taken along line AA′ of FIG. 6( a ).
  • the thermistor 140 is arranged around the ultrasonic generator 110 .
  • the thermistor 140 corresponds to the temperature detection unit of the present invention.
  • the thermistor 140 is held by the holding portion 131 provided in the fixing member 130 .
  • the holding portion 131 has an accommodating portion 132 having a shape corresponding to the thermistor 140 .
  • the thermistor 140 is accommodated in the accommodating portion 132 of the holding portion 131 .
  • the front surface 141 of the thermistor 140 is exposed to the outside of the holding portion 131 and faces the inside of the fixing member 130 .
  • the front surface 141 of the thermistor 140 is close to or in contact with the side surface of the ultrasonic generator 110 .
  • the ultrasonic generator 110 When the ultrasonic generator 110 generates heat, the heat propagates to the thermistor 140 . Thereby, the temperature of the ultrasonic generator 110 is detected by the thermistor 140 .
  • FIG. 7 is a side cross-sectional view of the ultrasonic cleaning device 50 , the storage tank 60 , the supply valve 400 , the supply nozzle 500 , and the drain receiving portion 70 when the ultrasonic cleaning portion 100 and the water storage portion 200 are accommodated in the accommodating portion 17 .
  • . 8 shows the side of the ultrasonic cleaning device 50 , the storage tank 60 , the supply valve 400 , the supply nozzle 500 , and the drain receiving portion 70 when the ultrasonic cleaning portion 100 and the water storage portion 200 are pulled out from the accommodating portion 17 . Cutaway.
  • FIG. 9 is a perspective view of the storage tank 60 , the supply valve 400 , and the supply nozzle 500 .
  • the storage tank 60 In the accommodating part 17, the storage tank 60, the supply valve 400, and the supply nozzle 500 are arranged behind the ultrasonic cleaning device 50.
  • the storage tank 60 is equivalent to the storage part of this invention.
  • the supply valve 400 is a solenoid valve.
  • the supply valve 400 includes a valve housing 410 having an inlet on the left and right side surfaces and an outlet on the lower surface, a valve body 420 opening and closing the outlet of the valve housing 410 , and a driving unit 430 such as a solenoid, which drives the valve body 420 .
  • the outlet of the valve housing 410 is connected to the inlet of the supply nozzle 500 .
  • the storage tank 60 is formed of a resin material, and is divided into a first tank 61 and a second tank 62 via the supply valve 400 .
  • the upper parts of both the first tank 61 and the second tank 62 are connected by a communication portion 63 extending from the first tank 61 .
  • the outflow port 64 formed in the lower part of the first tank 61 is connected to the inlet on the left side of the valve housing 410 .
  • the outflow port 65 formed in the lower part of the 2nd tank 62 is connected to the inlet of the right side of the valve housing 410.
  • Outflow ports 64 and 65 of the first tank 61 and the second tank 62 are connected to each other via the valve case 410 .
  • An inflow port 66 for the washing water into the storage tank 60 is formed in the first tank 61 .
  • the inflow port 66 is connected to the washing water supply path 97 of the automatic injection mechanism 90 .
  • the washing water supplied from the automatic feeding mechanism 90 flows into the first tank 61 from the inflow port 66 and then flows into the second tank 62 through the valve housing 410 and the communication portion 63 .
  • the storage tank 60 stores the washing water.
  • the water storage capacity of the storage tank 60 is set to be larger than the water storage capacity of the water storage tank 210 .
  • the supply nozzle 500 is formed of a resin material, extends forward from the supply valve 400 , and has a front end portion 500a bent downward.
  • the discharge port 501 is formed in the lower surface of the front-end
  • a substantially square dish-shaped drain receiving portion 70 is arranged below the ultrasonic cleaning device 50 .
  • a drain hole 71 is formed at the lower end of the rear portion on the right side of the drain receiving portion 70 .
  • a drain pipe 72 is connected to a connection pipe 73 extending rightward from the discharge hole 71 .
  • FIG. 10 is a block diagram showing the configuration of the fully automatic washing machine 1 .
  • the fully automatic washing machine 1 is further provided with the operation part 610 and the water level detection part 620 in addition to the structure mentioned above.
  • the control unit 16 includes a control unit 701 , a storage unit 702 , an operation detection unit 703 , a motor drive unit 704 , a clutch drive unit 705 , five valve drive units 706 to 710 , a pump drive unit 711 , and a vibrator drive unit 712 .
  • the operation unit 610 includes various operation buttons such as a power ON button 611 , a power OFF button 612 , a start button 613 , a mode selection button 614 , and a cleaning button 615 .
  • the power-on button 611 and the power-off button 612 are buttons for turning on and off the power of the fully automatic washing machine 1, respectively.
  • the start button 613 is a button for starting the washing operation and the washing operation.
  • the mode selection button 614 is a button for selecting an arbitrary operation mode from a plurality of operation modes of the washing operation.
  • the washing button 615 is a button for selecting the washing operation.
  • the water level detection unit 620 includes a pair of electrode terminals arranged in the storage tank 60, and detects that the water level in the storage tank 60 has reached a water level in a full water state.
  • the operation detection unit 703 outputs to the control unit 701 an operation signal corresponding to an operation button operated by the user among various operation buttons of the operation unit 610 .
  • the motor drive unit 704 , the clutch drive unit 705 , the five valve drive units 706 to 710 , the pump drive unit 711 , and the vibrator drive unit 712 drive the motor 31 , the clutch mechanism 32 a , and the water supply valve 81 according to control signals from the control unit 701 , respectively.
  • the first three-way valve 93 , the second three-way valve 96 , the supply valve 400 , the drain valve 40 , the supply pump 98 and the ultrasonic oscillator 111 are driven.
  • the storage section 702 includes EEPROM (Erasable Programmable Read Only Memory), RAM (Random Access Memory), and the like.
  • the storage unit 702 stores programs for executing the washing operation of various operation modes and the washing operation of the ultrasonic cleaning apparatus 50 .
  • the storage unit 702 stores various parameters and various control flags for executing the program.
  • the control unit 701 includes a CPU (Central Processing Unit) and the like, and controls the motor drive unit 704 and the clutch drive according to a program stored in the storage unit 702 based on respective signals from the operation detection unit 703 , the water level detection unit 620 , the thermistor 140 , and the like. part 705 , five valve drive parts 706 to 710 , a pump drive part 711 , a vibrator drive part 712 , and the like. As a result, the control unit 701 controls the ultrasonic generator 110 , the water supply unit 80 , and the automatic injection mechanism 90 .
  • a CPU Central Processing Unit
  • the fully automatic washing machine 1 can perform washing operation in various operation modes. In the laundry operation, a washing process, an intermediate dehydration process, a rinsing process, and a final dehydration process are sequentially performed.
  • the pulsator 24 rotates to the right and left in a state where water is stored in the washing and dewatering tub 22 .
  • a water flow is generated in the washing and dewatering tub 22.
  • the laundry is washed by the generated water flow and the detergent contained in the water.
  • the laundry is rinsed by the generated water flow.
  • the washing and dehydrating tub 22 and the pulsator 24 are integrally rotated at high speed.
  • the laundry is dehydrated by the centrifugal force generated in the washing and dehydrating tub 22 .
  • the liquid detergent is automatically injected into the washing and dewatering tub 22 by the automatic injection mechanism 90 .
  • the first three-way valve 93 is switched to a state in which the supply pipe 92 and the detergent supply passage 95 communicate with each other.
  • the second three-way valve 96 is switched to a state in which the upstream supply passage 95a and the downstream supply passage 95b communicate with each other.
  • the supply pump 98 when the supply pump 98 is operated, the liquid detergent in the detergent box 91 is discharged to the detergent supply path 95 by the suction action.
  • a predetermined amount of the liquid detergent is stored in the detergent supply passage 95 .
  • the first three-way valve 93 is switched to a state in which the auxiliary water supply passage 94 and the detergent supply passage 95 communicate with each other, and the main valve 82 and the auxiliary valve 83 are opened.
  • the water from the faucet flows through the main water supply path 84 and is discharged into the washing and dewatering tub 22 from the water injection port 85a of the water injection tank 85 .
  • the water from the faucet flows to the detergent supply passage 95 through the auxiliary water supply passage 94 and the first three-way valve 93 to wash away the liquid detergent.
  • the liquid detergent washed away by the water flows through the detergent supply path 95 together with the water as indicated by the one-dot chain arrow in FIG.
  • the main valve 82 and the sub-valve 83 are closed, and the water supply ends.
  • the cleaning operation by the ultrasonic cleaning device 50 is performed.
  • the user pulls out the ultrasonic cleaning unit 100 and the water storage unit 200 of the ultrasonic cleaning apparatus 50 from the accommodating unit 17 as shown in FIG. 3( a ).
  • the water tank 210 is in a state in which the drain port 211 is closed by the valve body 220 .
  • the supply of washing water into the storage tank 60 is performed by the automatic injection mechanism 90 . That is, the first three-way valve 93 is switched to a state in which the supply pipe 92 and the detergent supply passage 95 communicate with each other. Further, the second three-way valve 96 is switched to a state in which the upstream supply passage 95a and the washing water supply passage 97 communicate with each other. Furthermore, the supply valve 400 is closed.
  • the supply pump 98 operates for a predetermined time, a predetermined amount of the liquid detergent is stored in the detergent supply passage 95 .
  • the supply amount of the detergent at this time becomes the standard amount.
  • the standard amount can be changed according to the type of detergent accommodated in the detergent box 91 .
  • the first three-way valve 93 is switched to a state in which the auxiliary water supply passage 94 and the detergent supply passage 95 communicate with each other, and the auxiliary valve 83 is opened.
  • the water from the faucet flows through the auxiliary water supply passage 94 and the first three-way valve 93 to the detergent supply passage 95, and washes away the liquid detergent.
  • Water is mixed with liquid detergent to become wash water.
  • the washing water flows into the storage tank 60 through the washing water supply passage 97 .
  • the sub-valve 83 is closed. In this way, by the washing water supplied from the automatic feeding mechanism 90 , the washing water having a predetermined water amount and a predetermined detergent concentration is stored in the storage tank 60 .
  • the supply valve 400 is opened.
  • the washing water in the storage tank 60 is discharged into the water storage tub 210 from the discharge port 501 through the supply nozzle 500 .
  • the washing water is stored in the water storage tub 210, and the water level in the water storage tub 210 rises.
  • the water level in the water tank 210 rises to the height of the discharge port 501 as shown by the one-dot chain line in FIG.
  • the water supply from the storage tank 60 is stopped while the open state of the supply valve 400 is maintained.
  • About one-third of the washing water remains in the storage tank 60 when it is full.
  • the front end of the ultrasonic generator 110 is in contact with the water surface.
  • the user places the dirt adhering part of the object to be washed between the water storage tub 210 and the vibration horn 112 of the ultrasonic generator 110 .
  • the dirt adhering portion of the object to be washed is immersed in the washing water, and the washing water that has penetrated into the inside of the object to be washed seeps out to the surface.
  • a thin water layer is formed on the surface of the object to be washed, and the vibration horn 112 is in contact with the water layer.
  • the object to be washed absorbs water
  • the amount of water in the water storage tub 210 decreases and the water level drops, and when the discharge port 501 of the supply nozzle 500 is no longer blocked by the washing water, the washing water is replenished from the storage tank 60 into the water storage tub 210, Until the discharge port 501 is blocked by the washing water again.
  • the water level in the water storage tank 210 that is, the amount of water is maintained in an appropriate state.
  • the ultrasonic transducer 111 When a predetermined standby time elapses after the supply valve 400 is opened, the ultrasonic transducer 111 is energized to operate the ultrasonic generator 110 . Ultrasonic waves are generated from the tip of the vibrating horn 112, and dirt is removed from the object to be cleaned by the action of the ultrasonic waves. At this time, the cleaning power is improved by applying the force of the detergent.
  • the user accommodates the ultrasonic cleaning part 100 and the water storage part 200 of the ultrasonic cleaning device 50 in the accommodating part 17 .
  • the valve movable member 230 abuts on the rear wall of the drain receiving portion 70 and moves forward. Thereby, the valve body 220 moves forward, and the drain port 211 is opened.
  • the drain port 211 is opened, the washing water in the water storage tub 210 is drained to the drain receiving portion 70.
  • the washing water discharged to the drain receiving portion 70 is discharged from the discharge hole 71 , flows through the drain pipe 72 , the overflow pipe 26 , and the drain hose 41 , and is discharged to the outside of the machine.
  • the supply valve 400 is opened, and the washing water remaining in the storage tank 60 is also discharged to the outside of the machine via the water storage tub 210 and the like.
  • the storage tank 60 will be emptied before the washing operation is completed and become a water storage tank at the one-time storage volume when a plurality of objects to be washed with high water absorption are washed once.
  • the situation in which the washing water in 210 is insufficient.
  • the washing water contained in the object to be washed does not come into contact with the front end of the vibration horn 112 of the ultrasonic generator 110, so the ultrasonic wave does not It will spread to the washing water, and it is difficult to exert the washing effect of the object to be washed.
  • control unit 701 executes the flushing water replenishment process. Accordingly, while cleaning is performed by the operation of the ultrasonic generator 110 , the cleaning water is replenished into the storage tank 60 at necessary timing.
  • the control unit 701 makes the water supply unit 80 supply water into the storage tank 60 based on the temperature detected by the thermistor 140 during the operation of the ultrasonic generator 110 to replenish the water into the storage tank 210 . Then, the control unit 701 causes the water supply unit 80 to supply water into the storage tank 60 based on the replenishment time, which is a predetermined time since the operation of the ultrasonic generator 110 has elapsed.
  • FIG. 11 is a flowchart showing the replenishment process of the washing water to the storage tank 60 .
  • the control unit 701 first detects the temperature of the ultrasonic generator 110 before operation by the thermistor 140 as the reference temperature T1 ( S101 ). Then, when the ultrasonic transducer 111 is energized and the ultrasonic generator 110 operates ( S102 : YES), the control unit 701 detects the temperature T2 of the operating ultrasonic generator 110 via the thermistor 140 ( S103 ). Then, the control unit 701 calculates the difference between the temperature T2 and the reference temperature T1 as the temperature rise value ⁇ T with respect to the reference temperature T1 ( S104 ).
  • the control unit 701 determines whether or not the temperature rise value ⁇ T exceeds a threshold value ( S105 ).
  • a threshold value S105
  • the washing water in the water storage tub 210 is sufficient and the washing water sufficiently penetrates the object to be washed
  • the washing water contained in the object to be washed may interact with the front end of the vibration horn 112 of the ultrasonic generator 110 . Therefore, the ultrasonic generator 110 is cooled by the cleaning water. Thereby, the temperature of the ultrasonic generator 110 hardly rises, and the temperature rise value ⁇ T does not exceed the threshold value.
  • the control unit 701 determines whether or not the replenishment of the washing water into the storage tank 60 is completed based on the elapse of the replenishment time ( S106 ). Then, when the replenishment based on the elapse of the replenishment time has not been completed, the control unit 701 determines whether or not the replenishment time has elapsed since the operation of the ultrasonic generator 110 ( S107 ).
  • the replenishment time is set to, for example, 1 minute, and is counted by a timer (not shown) provided in the control unit 701 .
  • the control unit 701 returns to the process of S103 , detects the temperature T2 , calculates the temperature increase value ⁇ T, and waits for the replenishment time to elapse while monitoring whether the temperature increase value ⁇ T exceeds the threshold value ( S103 to S107 ) .
  • the control unit 701 operates the water supply unit 80 to supply wash water into the storage tank 60 until the water level detection unit 620 detects the The water level of the full water state (S108). At this time, the same standard amount of detergent as at the start of the washing operation is supplied by the automatic feeding mechanism 90 .
  • the supply valve 400 is closed when the flush water is supplied into the storage tank 60, and the supply valve 400 is opened when the supply is completed.
  • the storage tank 60 is emptied before the replenishment time elapses, and the washing water in the storage tub 210 may become insufficient.
  • the washing water cannot penetrate into the object to be washed, and the washing water contained in the object to be washed does not come into contact with the tip of the vibration horn 112 of the ultrasonic generator 110 . Accordingly, since the ultrasonic generator 110 is not cooled by the washing water, the temperature of the ultrasonic generator 110 rises, and the temperature rise value ⁇ T exceeds the threshold value.
  • the control unit 701 When the temperature rise value ⁇ T exceeds the threshold value ( S105 : YES), the control unit 701 operates the water supply unit 80 to supply the washing water into the storage tank 60 until the water level detection unit 620 detects the water level of the full water state ( S109 ) . At this time, a standard amount of detergent is supplied by the automatic injection mechanism 90 .
  • the supply valve 400 is closed when the washing water is supplied into the storage tank 60, and the supply valve 400 is opened when the supply is completed. Furthermore, while the washing water is being supplied into the storage tank 60, the operation of the ultrasonic generator 110 is interrupted, and the counting of the operation time is also interrupted.
  • the control unit 701 After the replenishment based on the elapse of the replenishment time is completed (S106: YES), the control unit 701 detects the temperature T2, calculates the temperature rise value ⁇ T, and waits for the energization of the ultrasonic transducer 111 with the operation time while monitoring whether the temperature rise value ⁇ T exceeds the threshold value. The operation of the ultrasonic generator 110 is stopped (S103 to S106, S110).
  • the control unit 701 ends the replenishment process.
  • control unit 701 monitors whether or not abnormal heat generation occurs in the ultrasonic generator 110 through the thermistor 140 during the operation of the ultrasonic generator 110 .
  • the control unit 701 stops the operation of the ultrasonic generator 110 .
  • the washing is performed from the water supply unit 80 to the storage tank 60 .
  • the supply of purified water is to supply washing water into the water storage tub 210 .
  • the reference temperature T1 is detected by the thermistor 140 before the operation of the ultrasonic generator 110 , and the relative reference temperature is obtained from the temperature T2 detected by the thermistor 140 during the operation of the ultrasonic generator 110 .
  • the water supply unit 80 supplies the washing water.
  • the supply of the washing water from the water supply unit 80 to the storage tank 60 is performed based on the elapse of the replenishment time after the operation of the ultrasonic generator 110, it is possible to proceed when the washing water in the storage tub 210 is insufficient.
  • the storage tank 60 is supplied with wash water.
  • the washing water in the water tank 210 becomes insufficient before the washing water is replenished based on the elapse of the replenishment time
  • the washing water is also replenished based on the temperature detected by the thermistor 140, so that it is possible to reduce the amount of washing water.
  • the frequency of replenishment of the washing water based on the elapse of the replenishment time can be performed once, for example, as shown in the present embodiment, and it is possible to prevent a large amount of washing water from remaining in the storage tank 60 after the washing operation.
  • FIG. 12 is a flowchart showing a process of replenishing the washing water to the storage tank 60 according to Modification 1.
  • the supply amount of the detergent (hereinafter, referred to as "detergent amount") by the automatic feeding mechanism 90 is set in the case of the replenishment of the washing water based on the detected temperature ( S109 ) and the elapse of the replenishment time. In the case of the replenishment of the washing water (S108), it is fixed and the standard amount is used.
  • the detergent amount is set in correspondence with the case of replenishing the washing water based on the detected temperature and the case of replenishing the washing water based on the elapse of the replenishment time.
  • the controller 701 sets the detergent amount to the standard amount ( S111 ), and then operates the water supply unit 80 to supply the detergent into the storage tank 60 Purified water (S109).
  • a standard amount of detergent is supplied by the automatic injection mechanism 90 .
  • the control unit 701 determines whether or not the replenishment of the washing water based on the temperature detected by the thermistor 140 is performed ( S112 ).
  • the storage tank 60 When the storage tank 60 is emptied, it is replenished based on the detected temperature. Therefore, regardless of whether the replenishment is performed based on the detected temperature before the replenishment based on the elapse of time, when the replenishment time elapses, the washing water remains in the storage tank 60. The possibilities are very high. Furthermore, when the replenishment is performed based on the detected temperature before the replenishment is performed based on the elapse of time, there is a high possibility that more wash water remains in the storage tank 60 than when the replenishment is not performed.
  • the amount of detergent in the case of replenishing the washing water based on the elapse of time is higher than that in the case of replenishing the washing water based on the detected temperature. A small amount is sufficient, and when replenishment is performed based on the detected temperature before replenishment based on the elapse of time, the amount of detergent may be reduced.
  • the control unit 701 sets the detergent amount to a first amount smaller than the standard amount ( S113 ), and then operates the water supply unit 80 . Wash water is supplied into the storage tank 60 (S108). The first amount of detergent is supplied by the automatic injection mechanism 90 .
  • the control unit 701 sets the detergent amount to a second amount smaller than the first amount ( S114 ), and then makes the water supply The unit 80 operates to supply the washing water into the storage tank 60 (S108).
  • the second amount of detergent is supplied by the automatic injection mechanism 90.
  • the amount of detergent when the washing water is replenished based on the elapse of time is set to be smaller than the amount of detergent when the washing water is replenished based on the detected temperature, so that waste of detergent can be suppressed. Furthermore, when the washing water is replenished based on the detected temperature when the washing water is replenished based on the elapse of time, the amount of the detergent is smaller than that when the washing water is not replenished, so that the waste of the detergent can be further suppressed.
  • the reference temperature T1 is detected by the thermistor 140 before the ultrasonic generator 110 operates.
  • the reference temperature T1 may be detected by the thermistor 140 at an initial time point immediately after the operation of the ultrasonic generator 110 or the like. At this point in time, the temperature of the ultrasonic generator 110 hardly changed from that before the operation.
  • the temperature rise value ⁇ T is obtained from the temperature T2 and the reference temperature T1 detected by the thermistor 140 during the operation of the ultrasonic generator 110, and based on the temperature rise value ⁇ T exceeding the temperature rise value ⁇ T is used to determine that the washing water is insufficient.
  • the threshold value of that is, the temperature rise value as the threshold value, is used to replenish the washing water into the storage tank 60 .
  • the supply of the washing water into the storage tank 60 may be performed.
  • the replenishment of the washing water based on the elapse of the replenishment time is performed once.
  • the replenishment of the wash water may be performed twice based on the lapse of the replenishment time.
  • only the replenishment of the washing water based on the temperature detected by the thermistor 140 may be performed without the replenishment of the washing water based on the elapse of the replenishment time.
  • the thermistor 140 is disposed around the ultrasonic generator 110 by being held by the holding portion 131 of the fixing member 130 .
  • the structure for arranging the thermistor 140 around the ultrasonic generator 110 is not limited to the above-mentioned structure, and may be any structure.
  • the storage tank 60 is divided into the first tank 61 and the second tank 62 with the supply valve 400 interposed therebetween.
  • the storage tank 60 may have any structure as long as it can store the washing water.
  • the storage tank 60 is provided, but a configuration may be adopted in which the washing water is directly supplied from the water supply unit 80 to the water storage tub 210 without providing the storage tank 60 .
  • the washing water which mixed the detergent in water is supplied to the storage tank 60 from the water supply unit 80, and is stored in the water storage tub 210.
  • the water in which the detergent is not mixed may be supplied to the storage tank 60 from the water supply unit 80 and stored in the water storage tub 210 .
  • the automatic injection mechanism 90 may be configured to automatically inject detergent and softener.
  • the softener cartridge is connected to the auxiliary water supply line 94 via a supply pipe and a three-way valve. During the rinsing process, the softener in the softener box is supplied into the washing and dewatering tub 22 by the same operation as the supply of the detergent from the detergent box 91 .
  • throwing-in mechanism 90 is not limited to the above-mentioned embodiment.
  • the water supply unit 80 may have any configuration as long as it can supply water to the washing and dewatering tub 22 and the storage tank 60
  • the automatic feeding mechanism 90 may have any configuration as long as it can supply the detergent to the washing and dehydrating tub 22 and the storage tank 60 .
  • the ultrasonic cleaning device 50 is installed in the fully automatic washing machine 1 .
  • the ultrasonic cleaning device 50 may be installed in a washing machine other than the fully automatic washing machine 1, for example, a front-loading washing machine.
  • the ultrasonic cleaning device 50 may be installed in, for example, a fully automatic washer-dryer and a drum-type washer-dryer having a drying function.
  • a drum serving as an inner tub is disposed in the outer tub.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Abstract

本发明提供一种能抑制在因水不足而未发挥被洗净物的洗净效果的状态下进行洗净运转的洗衣机。全自动洗衣机(1)具备：贮水桶，蓄留洗净水，被洗净物浸泡在该洗净水中；超声波发生体，产生超声波；供水单元，供给要蓄于贮水桶的洗净水；热敏电阻(140)，配置于超声波发生体的周围；以及控制部(701)，控制超声波发生体和供水单元。超声波发生体与浸透至被洗净物的洗净水接触，使产生的超声波向该洗净水传播。控制部(701)在贮水桶内蓄有洗净水的状态下使超声波发生体工作，基于在超声波发生体工作中由热敏电阻(140)检测到的温度，使供水单元进行洗净水的供给以向贮水桶内补给洗净水。

Description

洗衣机 技术领域
本发明涉及一种洗衣机。
背景技术
专利文献1中记载了一种洗衣机，其在上面板的洗涤物投入口周围、例如投入口的前侧配置有超声波洗净装置。超声波洗净装置具备：贮水桶，可蓄水；以及超声波产生单元，具有位于贮水桶的正上方的超声波发生体。向蓄有水的贮水桶内放置被洗净物的污垢附着部分，开始洗净运转。由超声波发生体产生的超声波能量作用于浸透了水的污垢附着部分来剥离污垢。
在上述的超声波洗净装置中，当因贮水桶内水不足而洗净水无法充分浸透被洗净物时，被洗净物中所含的水不会与超声波发生体的前端接触，因此超声波不会向水中传播，不易发挥被洗净物的洗净效果。
现有技术文献
专利文献
专利文献1：日本特开2018－68435号公报
发明内容
发明所要解决的问题
因此，本发明的目的在于提供一种能抑制在因水不足而未发挥被洗净物的洗净效果的状态下进行洗净运转的洗衣机。
用于解决问题的方案
本发明的主要方案的洗衣机具备：贮水桶，可蓄水，被洗净物浸泡在该水中；超声波发生体，产生超声波；供水部，供给要蓄于所述贮水桶的水；温度 检测部，配置于所述超声波发生体的周围；以及控制部，控制所述超声波发生体和所述供水部。其中，所述超声波发生体与浸透至被洗净物的水接触，使超声波向该水传播。所述控制部在所述贮水桶内蓄有水的状态下使所述超声波发生体工作，基于在所述超声波发生体工作中由所述温度检测部检测到的温度，使所述供水部进行供水以向所述贮水桶内补给水。
在贮水桶内的水足够而水充分浸透至被洗净物的情况下，被洗净物中所含的水会与超声波发生体的前端接触，因此超声波发生体会被水冷却。另一方面，在贮水桶内的水不足的情况下，水无法充分浸透至被洗净物，被洗净物中所含的水不会与超声波发生体的前端接触。由此，超声波发生体不会被水冷却，因此超声波发生体的温度会上升。
根据本方案的洗衣机，在基于在超声波发生体工作中由温度检测部检测到的温度而认定贮水桶内的水不足的情况下，从供水部进行供水以向贮水桶内补给水。由此，能抑制在因水不足而未发挥被洗净物的洗净效果的状态下进行洗净运转。
在本方案的洗衣机中，所述控制部可以采用如下结构：在所述超声波发生体的工作前或工作初期通过所述温度检测部来检测基准温度，根据在所述超声波发生体工作中由所述温度检测部检测到的温度，求出相对于所述基准温度的温度上升值，在所述温度上升值超过阈值的情况下，使所述供水部进行供水。
根据上述的结构，通过使用温度上升值，不易受到可能会根据周围温度等而变化的超声波发生体工作前的温度的影响，因此能高精度地判定出水不足并通过供水部来进行水的补给。
在本方案的洗衣机中，可以采用还具备蓄留要向所述贮水桶供给的水的贮留部。在该情况下，所述供水部向所述贮留部供水，当所述贮水桶内的水减少时，从所述贮留部向所述贮水桶补给水。所述控制部基于在所述超声波发生体工作中由所述温度检测部检测到的温度，使所述供水部向所述贮留部进行供水。
根据上述的结构，在基于在超声波发生体工作中由温度检测部检测到的温度而认定因贮留部排空而导致贮水桶内的水不足的情况下，从供水部向贮留部进行供水。由此，能抑制在因水不足而未发挥被洗净物的洗净效果的状态下进 行洗净运转。
在采用上述的结构的情况下，进而，所述控制部可以采用基于从所述超声波发生体开始工作起经过了规定时间来使所述供水部向所述贮留部进行供水的结构。
当采用这样的结构时，可以在贮水桶内的水不足之前向贮留部补给水。此外，当基于规定时间的经过来进行水的补给之前贮水桶内的水变得不足时，也会基于温度检测部的检测温度来进行水的补给，因此能减少基于规定时间的经过的水的补给的频率，能抑制在洗净运转之后多量的水残留于贮留部内。
如上所述，在采用了基于规定时间的经过来进行水的补给的结构的情况下，还可以采用还具备供给向要蓄留至所述贮留部的水中混入的洗涤剂的洗涤剂供给部的结构。在该情况下，所述控制部可以采用如下结构：控制所述洗涤剂供给部，使得基于所述规定时间的经过而向所述贮留部供水时的洗涤剂的供给量比基于由所述温度检测部检测到的温度而向所述贮留部供水时的所述洗涤剂的供给量少。
当采用这样的结构时，通过施加洗涤剂的力，洗净力提高。而且，基于规定时间的经过进行补给时的洗涤剂的供给量被设为比基于检测温度进行补给时的洗涤剂的供给量少，因此能抑制浪费洗涤剂。
发明效果
根据本发明，能提供一种能抑制在因水不足而未发挥被洗净物的洗净效果的状态下进行洗净运转的洗衣机。
本发明效果乃至意义通过以下所示的实施方式的说明而进一步明确。不过，以下的实施方式终究只是实施本发明时的一个例示，本发明不受以下的实施方式所记载的内容的任何限制。
附图说明
图1是实施方式的全自动洗衣机的侧剖图。
图2是表示实施方式的供水单元的结构的概略图。
图3的(a)是实施方式的超声波洗净部和贮水部处于从容纳部被拉出的状态时的超声波洗净装置和上面板的立体图。图3的(b)和(c)是实施方式的超声波洗净部和贮水部处于容纳于容纳部的状态时的超声波洗净装置和上面板的主要部分的立体图。
图4是实施方式的贮水部从主体部脱离的状态的超声波洗净装置的立体图。
图5是实施方式的超声波洗净部和主体部的侧剖图。
图6的(a)是表示实施方式的固定构件穿过超声波发生体的上部的状态的立体图，图6的(b)是图6的(a)的A－A′剖视图。
图7是实施方式的超声波洗净部和贮水部处于容纳于容纳部的状态时的超声波洗净装置、贮留箱、供给阀、供给喷嘴以及排水承接部的侧剖图。
图8是实施方式的超声波洗净部和贮水部处于从容纳部被拉出的状态时的超声波洗净装置、贮留箱、供给阀、供给喷嘴以及排水承接部的侧剖图。
图9是实施方式的贮留箱、供给阀以及供给喷嘴的立体图。
图10是表示实施方式的全自动洗衣机的结构的框图。
图11是表示实施方式的对贮留箱的洗净水的补给处理的流程图。
图12是表示变更例1的对贮留箱的洗净水的补给处理的流程图。
附图标记说明
1：全自动洗衣机(洗衣机)；50：超声波洗净装置；60：贮留箱(贮留部)；80：供水单元(供水部)；90：自动投入机构(洗涤剂供给部)；110：超声波发生体；140：热敏电阻(温度检测部)；210：贮水桶；701：控制部。
具体实施方式
以下，参照附图对本发明的洗衣机的一个实施方式进行说明。
图1是全自动洗衣机1的侧剖图。
全自动洗衣机1具备构成外轮廓的箱体10。箱体10包括：上下表面敞开的方形筒状的机身部11、覆盖机身部11的上表面的上面板12以及支承机身部11 的脚台13。在上面板12形成有洗涤物的投入口14。投入口14由开闭自如的上盖15覆盖。在上面板12的前部，于内部配置有控制单元16。控制单元16控制全自动洗衣机1的洗衣运转和后述的超声波洗净装置50的洗净运转。
上表面开口的外桶20由具有防振装置的四根吊棒21弹性地悬挂支承在箱体10内。在外桶20内配置有作为内桶的洗涤脱水桶22。洗涤脱水桶22上表面开口，以沿铅垂方向延伸的旋转轴为中心旋转。在洗涤脱水桶22的内周面遍及整周地形成有许多脱水孔22a。在洗涤脱水桶22的上部设有平衡环23。在洗涤脱水桶22的底部配置有波轮24。在波轮24的表面呈放射状地设有多个叶片24a。
在外桶20的外底部配置有产生驱动洗涤脱水桶22和波轮24的转矩的驱动单元30。驱动单元30包括驱动马达31和传递机构部32。传递机构部32具有离合机构32a，通过由该离合机构32a实现的切换操作，在清洗过程和漂洗过程中将驱动马达31的转矩仅传递给波轮24而仅使波轮24旋转，在脱水过程中将驱动马达31的转矩传递给波轮24和洗涤脱水桶22而使波轮24和洗涤脱水桶22一体地旋转。
在外桶20的外底部形成有排水口部20a。在排水口部20a设有排水阀40。排水阀40连接于排水软管41。当打开排水阀40时，蓄于洗涤脱水桶22和外桶20的水经过排水软管41向机外排出。
在外桶20的上部形成有溢水口20b。当外桶20内蓄有规定的溢水水位以上的水时，水会从溢水口20b排出。在外桶20的外表面以覆盖溢水口20b的方式设有溢水承接部25。在溢水承接部25的底部连接有溢水管26的一端。溢水管26的另一端连接于排水软管41。从溢水口20b排出的水被溢水承接部25承接后经过溢水管26流向排水软管41。
在上面板12的后部的大致中央配置有超声波洗净装置50。超声波洗净装置50主要进行用于在全自动洗衣机1进行洗涤之前去除附着于被洗净物局部的污垢的洗净运转。
在上面板12的后部，于超声波洗净装置50的后方配置有贮留箱60，于超声波洗净装置50的下方配置有排水承接部70。要供给向超声波洗净装置50的贮水桶210的含有洗涤剂的水作为洗净水蓄于贮留箱60。
排水承接部70承接从贮水桶210排出的水。在排水承接部70形成有供承接到的水排出的排出孔71。在排出孔71连接有排水管72的一端。排水管72的另一端连接于溢水管26的上部。
在上面板12的后部配置有用于向洗涤脱水桶22内供给自来水的供水单元80。
图2是表示供水单元80的结构的概略图。
供水单元80具有供水阀81。供水阀81是所谓的双联阀，具有作为电磁阀的主阀82和副阀83。供水阀81的入水口81a经由未图示的供水软管与水龙头连接。在主阀82的出口连接有主供水路84。主供水路84与位于洗涤脱水桶22的上部的注水箱85连接。在注水箱85的底面形成有注水口85a。
供水单元80中包括用于将作为洗涤用的液剂的一种的液体洗涤剂自动投入洗涤脱水桶22内的自动投入机构90。自动投入机构90还具备向贮留箱60供给洗净水的功能。供水单元80相当于本发明的供水部，自动投入机构90相当于本发明的洗涤剂供给部。
自动投入机构90具备：洗涤剂盒91、供给管92、第一三通阀93、副供水路94、洗涤剂供给路95、第二三通阀96、洗净水供给路97以及供给泵98。自动投入机构90还包括供水阀81的副阀83。
液体洗涤剂以原液的状态贮留于洗涤剂盒91。供给管92将洗涤剂盒91的液体洗涤剂导向第一三通阀93的一个入口。
副供水路94与副阀83的出口及第一三通阀93的另一个入口连接。
在第一三通阀93的出口连接有洗涤剂供给路95。洗涤剂供给路95连接于注水箱85。
第一三通阀93能在使供给管92和洗涤剂供给路95连通的状态与使副供水路94和洗涤剂供给路95连通的状态之间切换。
在洗涤剂供给路95设有第二三通阀96。在第二三通阀96的入口连接有洗涤剂供给路95的上游侧供给路95a，在第二三通阀96的一个出口连接有洗涤剂供给路95的下游侧供给路95b。此外，在第二三通阀96的另一个出口连接有洗 净水供给路97的一端。洗净水供给路97的另一端连接于贮留箱60。
第二三通阀96能在使上游侧供给路95a和下游侧供给路95b连通的状态与使上游侧供给路95a和洗净水供给路97连通的状态之间切换。
在上游侧供给路95a配置有供给泵98。供给泵98例如能采用活塞泵。
接着，对超声波洗净装置50的结构和包括贮留箱60、排水承接部70的超声波洗净装置50的周边的结构进行详细说明。
图3的(a)是超声波洗净部100和贮水部200处于从容纳部17被拉出的状态时的超声波洗净装置50及上面板12的立体图。图3的(b)和(c)是超声波洗净部100和贮水部200处于容纳于容纳部17的状态时的超声波洗净装置50及上面板12的主要部分的立体图。图3的(c)中，为了能看到容纳部17的内部，省略了罩19的图示。
在上面板12，于后部的中央部设有容纳超声波洗净装置50的容纳部17。上面板12中，容纳部17的前方作为出入口18开口。在出入口18设有罩19。
超声波洗净装置50具备：超声波洗净部100、贮水部200以及主体部300。超声波洗净部100具有产生超声波的超声波发生体110。主体部300保持超声波洗净部100。贮水部200装接于主体部300，位于超声波发生体110的下方。在贮水部200设有蓄留洗净水的贮水桶210。
如图3的(a)所示，在进行洗净运转时，超声波洗净装置50成为如下状态：超声波洗净部100和贮水部200从容纳部17向前方被拉出，向上面板12的投入口14的内侧突出。另一方面，如图3的(b)和(c)所示，在不进行洗净运转时，超声波洗净装置50成为超声波洗净部100和贮水部200被容纳于容纳部17的状态。出入口18被罩19关闭。
图4是贮水部200从主体部300脱离的状态的超声波洗净装置50的立体图。图5是超声波洗净部100和主体部300的侧剖图。
超声波洗净装置50中，超声波洗净部100被保持于主体部300，贮水部200以可脱离的方式装接于主体部300。
超声波洗净部100具备超声波发生体110和外壳120。超声波发生体110包 括超声波振子111和与超声波振子111结合的振动变幅杆112。超声波发生体110通过超声波振子111的高频振动来从振动变幅杆112的前端产生超声波。外壳120具有前后方向上长且其前端部121向下方弯曲的臂形。在外壳120内的前部配置有超声波发生体110。超声波发生体110被框状的固定构件130从上侧按压。振动变幅杆112的前端部从外壳120的开口部122露出。外壳120的后部123固定于主体部300的上部。
在贮水部200的前表面形成有把手201。此外，在贮水部200形成有具有沿循贮水部200的外形的形状的贮水桶210。在贮水桶210的后表面的下部形成有排水口211。排水口211被阀体220闭塞。在阀体220连结有阀可动构件230。阀可动构件230的后部231比贮水部200向后方突出。阀可动构件230通过未图示的弹簧，向阀体220关闭的后方向被施力。
图6的(a)是表示固定构件130穿过超声波发生体110的上部的状态的立体图，图6的(b)是图6的(a)的A－A′剖视图。
为了检测超声波发生体110的温度，在超声波发生体110的周围配置有热敏电阻140。热敏电阻140相当于本发明的温度检测部。
热敏电阻140由设于固定构件130的保持部131保持。保持部131具有与热敏电阻140对应形状的容纳部132。
热敏电阻140容纳于保持部131的容纳部132。在热敏电阻140保持于保持部131的状态下，热敏电阻140的正面141向保持部131的外部露出，面向固定构件130的内部。并且，热敏电阻140的正面141与超声波发生体110的侧面接近或接触。当超声波发生体110发热时，该热传播至热敏电阻140。由此，通过热敏电阻140来检测超声波发生体110的温度。
图7是超声波洗净部100和贮水部200处于容纳于容纳部17的状态时的超声波洗净装置50、贮留箱60、供给阀400、供给喷嘴500以及排水承接部70的侧剖图。图8是超声波洗净部100和贮水部200处于从容纳部17被拉出的状态时的超声波洗净装置50、贮留箱60、供给阀400、供给喷嘴500以及排水承接部70的侧剖图。图9是贮留箱60、供给阀400以及供给喷嘴500的立体图。
在容纳部17中，贮留箱60、供给阀400以及供给喷嘴500配置于超声波洗 净装置50的背后。贮留箱60相当于本发明的贮留部。
供给阀400为电磁阀。供给阀400包括：阀壳410，在左右的侧面具有入口，在下表面具有出口；阀体420，对阀壳410的出口进行开闭；以及螺线管等驱动部430，驱动阀体420。阀壳410的出口与供给喷嘴500的入口连接。
贮留箱60由树脂材料形成，隔着供给阀400被分为第一箱61和第二箱62。第一箱61和第二箱62两者的上部通过从第一箱61延伸的连通部63相连。形成于第一箱61的下部的流出口64与阀壳410的左侧的入口连接。形成于第二箱62的下部的流出口65与阀壳410的右侧的入口连接。第一箱61和第二箱62彼此的流出口64、65经由阀壳410相连。
在第一箱61形成有向贮留箱60内的洗净水的流入口66。流入口66与自动投入机构90的洗净水供给路97连接。从自动投入机构90供给来的洗净水从流入口66流入第一箱61内之后经过阀壳410和连通部63流入第二箱62内。由此，贮留箱60内蓄有洗净水。贮留箱60的贮水容量被设为比贮水桶210的贮水容量大。
当供给阀400即阀体420打开时，洗净水分别从贮留箱60的第一箱61内和第二箱62内经过阀壳410的出口流出。
供给喷嘴500由树脂材料形成，从供给阀400向前方延伸，其前端部500a向下方弯曲。在前端部500a的下表面形成有放出口501。
在容纳部17，于超声波洗净装置50的下方配置有大致方形的碟状的排水承接部70。在排水承接部70的右侧面，于后部的下端形成有排出孔71。在从排出孔71向右方延伸的连接管73连接有排水管72。
图10是表示全自动洗衣机1的结构的框图。
全自动洗衣机1除了上述的结构以外，还具备操作部610和水位检测部620。此外，控制单元16包括：控制部701、存储部702、操作检测部703、马达驱动部704、离合器驱动部705、五个阀驱动部706～710、泵驱动部711以及振子驱动部712。
操作部610包括：电源接通按钮611、电源断开按钮612、开始按钮613、模式选择按钮614、洗净按钮615等各种操作按钮。电源接通按钮611和电源断 开按钮612分别是用于接通和切断全自动洗衣机1的电源的按钮。开始按钮613是用于开始洗衣运转和洗净运转的按钮。模式选择按钮614是用于从洗衣运转的多个运转模式中选择任意的运转模式的按钮。洗净按钮615是用于选择洗净运转的按钮。
水位检测部620包括配置于贮留箱60内的一对电极端子，检测贮留箱60内的水位成为满水状态的水位这一情况。
操作检测部703将与操作部610的各种操作按钮中被用户操作了的操作按钮对应的操作信号输出至控制部701。
马达驱动部704、离合器驱动部705、五个阀驱动部706～710、泵驱动部711以及振子驱动部712分别根据来自控制部701的控制信号来对驱动马达31、离合机构32a、供水阀81、第一三通阀93、第二三通阀96、供给阀400、排水阀40、供给泵98以及超声波振子111进行驱动。
存储部702包括EEPROM(带电可擦可编程只读存储器)、RAM(随机存取存储器)等。存储部702中存储有用于执行各种运转模式的洗衣运转和超声波洗净装置50的洗净运转的程序。此外，存储部702中存储有用于程序的执行的各种参数、各种控制标记。
控制部701包括CPU(中央处理器)等，基于来自操作检测部703、水位检测部620、热敏电阻140等的各个信号，根据存储于存储部702的程序来控制马达驱动部704、离合器驱动部705、五个阀驱动部706～710、泵驱动部711、振子驱动部712等。其结果是，控制部701控制超声波发生体110、供水单元80以及自动投入机构90。
全自动洗衣机1中能进行各种运转模式的洗衣运转。在洗衣运转中，依次执行清洗过程、中间脱水过程、漂洗过程以及最终脱水过程。
在清洗过程和漂洗过程中，在洗涤脱水桶22内蓄有水的状态下，波轮24向右方和左方旋转。通过波轮24的旋转，洗涤脱水桶22内产生水流。在清洗过程中，通过产生的水流和水中所含的洗涤剂，洗涤物被清洗。在漂洗过程中，通过产生的水流，洗涤物被漂洗。
在中间脱水过程和最终脱水过程中，洗涤脱水桶22和波轮24一体地高速 旋转。通过洗涤脱水桶22中产生的离心力的作用，洗涤物被脱水。
在进行清洗过程中的供水时，由自动投入机构90向洗涤脱水桶22内自动投入液体洗涤剂。此时，首先，第一三通阀93切换为使供给管92与洗涤剂供给路95连通的状态。此外，第二三通阀96切换为使上游侧供给路95a与下游侧供给路95b连通的状态。如图2的虚线箭头所示，当供给泵98工作时，洗涤剂盒91内的液体洗涤剂通过抽吸作用向洗涤剂供给路95被排出。供给泵98工作预定的时间，由此，预定量的液体洗涤剂蓄于洗涤剂供给路95。
接着，第一三通阀93切换为使副供水路94与洗涤剂供给路95连通的状态，主阀82和副阀83打开。来自水龙头的水流过主供水路84，从注水箱85的注水口85a向洗涤脱水桶22内被放出。同时，如图2的实线箭头所示，来自水龙头的水经过副供水路94、第一三通阀93流向洗涤剂供给路95，冲走液体洗涤剂。被水冲走的液体洗涤剂如图2的单点划线箭头所示与水一起流过洗涤剂供给路95，从注水口85a被投入洗涤脱水桶22内。当洗涤脱水桶22内的水位到达规定的清洗水位时，主阀82和副阀83关闭，供水结束。
而且，全自动洗衣机1中进行由超声波洗净装置50实现的洗净运转。
用户在进行洗净运转的情况下如图3的(a)所示将超声波洗净装置50的超声波洗净部100和贮水部200从容纳部17拉出。如图8所示，贮水桶210成为由阀体220锁闭了排水口211的状态。
当用户操作洗净按钮615而选择了洗净运转后操作开始按钮613时，开始洗净运转。
当开始洗净运转时，由自动投入机构90进行向贮留箱60内的洗净水的供给。即，第一三通阀93切换为使供给管92与洗涤剂供给路95连通的状态。此外，第二三通阀96切换为使上游侧供给路95a与洗净水供给路97连通的状态。进而，关闭供给阀400。当供给泵98工作规定时间，规定量的液体洗涤剂蓄于洗涤剂供给路95。此时的洗涤剂的供给量成为标准量。标准量可以根据容纳于洗涤剂盒91的洗涤剂的种类而变更。
接着，第一三通阀93切换为使副供水路94与洗涤剂供给路95连通的状态，副阀83被打开。来自水龙头的水经过副供水路94、第一三通阀93流向洗涤剂 供给路95，冲走液体洗涤剂。水与液体洗涤剂混合而成为洗净水。如图2的粗线箭头所示，洗净水经过洗净水供给路97流入贮留箱60内。
当由水位检测部620检测到贮留箱60内的水位到达满水状态的水位时，副阀83被关闭。这样，通过从自动投入机构90供给的洗净水，规定的水量及规定的洗涤剂浓度的洗净水蓄于贮留箱60内。
接着，供给阀400打开。贮留箱60内的洗净水经过供给喷嘴500从放出口501被放出至贮水桶210内。洗净水蓄于贮水桶210内，贮水桶210内的水位上升。当如图8的单点划线所示贮水桶210内的水位上升至放出口501的高度而放出口501被洗净水堵住时，贮留箱60内的气压与外部的气压相平衡。由此，在保持供给阀400打开的状态不变的情况下来自贮留箱60的供水停止。在贮留箱60内残留有满水时的三分之一左右的洗净水。超声波发生体110的前端与水面接触。
当贮水桶210内蓄有洗净水时，用户将被洗净物的污垢附着部分放置于贮水桶210与超声波发生体110的振动变幅杆112之间。被洗净物的污垢附着部分被浸泡于洗净水中，浸透至被洗净物的内部的洗净水渗出表面。呈被洗净物的表面形成有薄的水层而振动变幅杆112与该水层接触的状态。
当被洗净物吸水从而贮水桶210内的水量减少而水位下降，供给喷嘴500的放出口501不再被洗净水堵住时，从贮留箱60向贮水桶210内补给洗净水，直至放出口501再次被洗净水堵住为止。由此，贮水桶210内的水位即水量维持在适当的状态。
当供给阀400打开后经过规定的待机时间时，向超声波振子111进行通电来使超声波发生体110工作。从振动变幅杆112的前端产生超声波，通过超声波的作用从被洗净物中剥离污垢。此时，通过施加洗涤剂的力，洗净力提高。
从超声波发生体110开始工作起经过规定的运转时间例如3分钟时，超声波发生体110的工作停止，洗净运转结束。
如图3的(b)和(c)所示，用户将超声波洗净装置50的超声波洗净部100和贮水部200容纳于容纳部17。如图7所示，阀可动构件230与排水承接部70的后壁抵接，向前方移动。由此，阀体220向前方移动，排水口211打开。当 排水口211打开时，贮水桶210内的洗净水向排水承接部70排出。排出至排水承接部70的洗净水从排出孔71排出，流过排水管72、溢水管26以及排水软管41，向机外排出。此时，供给阀400打开，残留于贮留箱60的洗净水也经由贮水桶210等向机外排出。
另外，存在如下的隐患：在吸水性高的多个被洗净物被洗净了一次等情况下，一次量的贮水量下，贮留箱60内在洗净运转结束之前排空，成为贮水桶210内的洗净水不足的境况。当因洗净水不足而洗净水无法充分浸透至被洗净物时，被洗净物中所含的洗净水不会与超声波发生体110的振动变幅杆112的前端接触，因此超声波不会向洗净水传播，不易发挥被洗净物的洗净效果。
因此，在本实施方式中，通过控制部701来执行洗净水的补给处理。由此，在通过超声波发生体110的工作来进行洗净的期间，在需要的时刻向贮留箱60内补给洗净水。
在补给处理中，控制部701基于在超声波发生体110工作中由热敏电阻140检测到的温度，使供水单元80向贮留箱60内进行供水以向贮水桶210内补给水。而且，控制部701基于从超声波发生体110开始工作起经过了规定时间即补给时间，使供水单元80向贮留箱60内进行供水。
图11是表示对贮留箱60的洗净水的补给处理的流程图。
当开始洗净运转时，开始补给处理。控制部701首先通过热敏电阻140检测出工作前的超声波发生体110的温度来作为基准温度T1(S101)。之后，当向超声波振子111进行了通电而超声波发生体110工作时(S102：是)，控制部701通过热敏电阻140来检测工作中的超声波发生体110的温度T2(S103)。然后，控制部701计算温度T2与基准温度T1之差来作为相对于基准温度T1的温度上升值ΔT(S104)。
接着，控制部701判定温度上升值ΔT是否超过阈值(S105)。在贮水桶210内的洗净水足够而洗净水充分浸透至被洗净物的情况下，被洗净物中所含的洗净水会与超声波发生体110的振动变幅杆112的前端接触，因此超声波发生体110会被洗净水冷却。由此，超声波发生体110的温度几乎不上升，温度上升值ΔT不超过阈值。
在温度上升值ΔT不超过阈值的情况下(S105：否)，控制部701判定基于补给时间的经过的向贮留箱60内的洗净水的补给是否完成(S106)。然后，在基于补给时间的经过的补给未完成的情况下，控制部701判定从超声波发生体110开始工作起是否经过了补给时间(S107)。补给时间例如设定为1分钟，由设于控制部701的未图示的计时器进行计时。
若未经过补给时间(S107：否)，则控制部701返回S103的处理，检测温度T2并计算温度上升值ΔT，一边监视温度上升值ΔT是否超过阈值，一边等待经过补给时间(S103～S107)。
之后，当以温度上升值ΔT不超过阈值的状态经过了补给时间时(S107：是)，控制部701使供水单元80工作，向贮留箱60内供给洗净水直至水位检测部620检测到满水状态的水位(S108)。此时，通过自动投入机构90来供给与洗净运转开始时相同标准量的洗涤剂。此外，在向贮留箱60内供给洗净水时供给阀400锁闭，当供给完成时供给阀400打开。
如上所述，在被洗净物吸收的洗净水变多的情况下，贮留箱60内会在经过补给时间前排空，可能引起贮水桶210内的洗净水不足。在这样的情况下，洗净水无法浸透至被洗净物，被洗净物中所含的洗净水不会与超声波发生体110的振动变幅杆112的前端接触。由此，超声波发生体110不会被洗净水冷却，因此超声波发生体110的温度上升，温度上升值ΔT超过阈值。
在温度上升值ΔT超过阈值的情况下(S105：是)，控制部701使供水单元80工作，向贮留箱60内供给洗净水直至水位检测部620检测到满水状态的水位(S109)。此时，通过自动投入机构90来供给标准量的洗涤剂。
需要说明的是，在向贮留箱60内供给洗净水时供给阀400锁闭，当供给完成时供给阀400打开。而且，在向贮留箱60内供给洗净水的期间，超声波发生体110的工作中断，运转时间的计时也中断。
基于补给时间的经过的补给完成后(S106：是)，控制部701检测温度T2，计算温度上升值ΔT，一边监视温度上升值ΔT是否超过阈值，一边等待向超声波振子111的通电随着运转时间的经过而停止从而超声波发生体110的工作停止(S103～S106、S110)。
然后，当超声波发生体110的工作停止时(S110：是)，控制部701结束补给处理。
需要说明的是，虽然罕见，但可能出现如下情况：在基于补给时间的经过的补给完成后到超声波发生体110的工作停止为止的期间，贮留箱60内再次排空，导致贮水桶210内的洗净水不足。该情况下，温度上升值ΔT超过阈值(S105：是)，因此控制部701使供水单元80工作来向贮留箱60内供给洗净水(S109)。
除了上述补给处理以外，控制部701还在超声波发生体110工作中通过热敏电阻140来监视超声波发生体110是否产生了异常的发热。当超声波发生体110的发热量多，由热敏电阻140检测到的温度达到上限温度时，控制部701使超声波发生体110停止工作。
＜实施方式的效果＞
以上，根据本实施方式，在基于在超声波发生体110工作中由热敏电阻140检测到的温度而认定贮水桶210内的洗净水不足的情况下，从供水单元80向贮留箱60进行洗净水的供给以向贮水桶210内供给洗净水。由此，能抑制在因水不足而未发挥被洗净物的洗净效果的状态下进行洗净运转。
此外，根据本实施方式，在超声波发生体110工作前通过热敏电阻140来检测基准温度T1，根据在超声波发生体110工作中由热敏电阻140检测到的温度T2来求出相对于基准温度T1的温度上升值ΔT，在温度上升值ΔT超过阈值的情况下通过供水单元80来进行洗净水的供给。通过像这样使用温度上升值ΔT，不易受到可能会根据周围温度等而变化的超声波发生体110工作前的温度的影响，因此能高精度地判断出洗净水不足并通过供水单元80来进行洗净水的补给。
此外，根据本实施方式，基于从超声波发生体110开始工作起经过了补给时间而从供水单元80向贮留箱60进行洗净水的供给，因此能够在贮水桶210内的洗净水不足前向贮留箱60补给洗净水。此外，当基于补给时间的经过来进行洗净水的补给之前贮水桶210内的洗净水变得不足时，也会基于热敏电阻140的检测温度来进行洗净水的补给，因此能减少基于补给时间的经过的洗净水的补给的频率，例如，能如本实施方式所示地进行一次，能抑制在洗净运转之后多量的洗净水残留于贮留箱60内。
以上，对本发明的实施方式进行了说明，但本发明不受上述实施方式的任何限制，此外，本发明的实施方式也能进行上述以外的各种变更。
＜变更例1＞
图12是表示变更例1的对贮留箱60的洗净水的补给处理的流程图。
在上述实施方式中，自动投入机构90的洗涤剂的供给量(以下，称为“洗涤剂量”)被设为在基于检测温度的洗净水的补给(S109)的情况和基于补给时间的经过的洗净水的补给(S108)的情况下固定，采用标准量。
在变更例1中，分别与基于检测温度的洗净水的补给的情况和基于补给时间的经过的洗净水的补给的情况对应，进行洗涤剂量的设定。
参照图12，在温度上升值ΔT超过阈值的情况下(S105：是)，控制部701将洗涤剂量设定为标准量(S111)之后，使供水单元80工作，向贮留箱60内供给洗净水(S109)。通过自动投入机构90来供给标准量的洗涤剂。
另一方面，在经过了补给时间的情况下(S107：是)，控制部701判定是否进行了基于热敏电阻140的检测温度的洗净水的补给(S112)。
当贮留箱60排空时会基于检测温度来进行补给，因此无论在基于时间经过进行补给前是否基于检测温度进行了补给，在经过补给时间时，洗净水残留于贮留箱60内的可能性都极高。而且，在基于时间经过进行补给前基于检测温度进行了补给的情况下，与不进行的情况相比，更多的洗净水残留于贮留箱60内的可能性极高。因此，为了使贮留箱60内成为满水状态时洗净水中的洗涤剂浓度相等，使基于时间经过的洗净水的补给的情况比基于检测温度的洗净水的补给的情况的洗涤剂量少即可，在基于时间经过进行补给前基于检测温度进行了补给的情况下，使洗涤剂量更少即可。
因此，在未基于检测温度进行洗净水的补给的情况下(112：否)，控制部701将洗涤剂量设定为比标准量少的第一量(S113)之后，使供水单元80工作，向贮留箱60内供给洗净水(S108)。通过自动投入机构90来供给第一量的洗涤剂。另一方面，在进行了基于检测温度的洗净水的补给的情况下(112：是)，控制部701将洗涤剂量设定为比第一量少的第二量(S114)之后，使供水单元80工作，向贮留箱60内供给洗净水(S108)。通过自动投入机构90来供给第 二量的洗涤剂。
根据变更例1的结构，基于时间经过进行洗净水的补给时的洗涤剂量被设为比基于检测温度进行洗净水的补给时的洗涤剂量少，因此能抑制浪费洗涤剂。而且，若在基于时间经过进行洗净水的补给时已经基于检测温度进行了洗净水的补给，则洗涤剂量会比未进行时少，因此能进一步抑制浪费洗涤剂。
＜其他变更例＞
在上述实施方式中，在超声波发生体110工作前通过热敏电阻140来检测基准温度T1。然而，也可以在超声波发生体110刚工作等工作后的初期时间点通过热敏电阻140来检测基准温度T1。在该时间点，超声波发生体110的温度与工作前几乎没有变化。
此外，在上述实施方式中，根据在超声波发生体110工作中由热敏电阻140检测到的温度T2和基准温度T1来求出温度上升值ΔT，基于温度上升值ΔT超过用于判定洗净水不足的阈值即作为阈值的温度上升值，向贮留箱60内进行洗净水的补给。然而，也可以是，基于由热敏电阻140检测到的温度T2超过用于判定洗净水不足的阈值即作为阈值的温度值，向贮留箱60内进行洗净水的补给。
而且，在上述实施方式中，在补给处理中，在超声波发生体110工作的期间，进行了一次基于补给时间的经过的洗净水的补给。然而，也可以进行两次基于补给时间的经过的洗净水的补给。而且，在补给处理中，也可以不进行基于补给时间的经过的洗净水的补给而仅进行基于热敏电阻140的检测温度的洗净水的补给。
而且，在上述实施方式中，热敏电阻140通过被固定构件130的保持部131保持而配置于超声波发生体110的周围。然而，用于将热敏电阻140配置于超声波发生体110的周围的结构不限于上述结构，可以是任意结构。
而且，在上述实施方式中，贮留箱60采用隔着供给阀400被分为第一箱61和第二箱62的结构。然而，贮留箱60只要能贮留洗净水，可以是任意结构。
而且，在上述实施方式中，设有贮留箱60，但也可以采用不设置贮留箱60而直接从供水单元80向贮水桶210供给洗净水的结构。
而且，在上述实施方式中，在水中混入洗涤剂而成的洗净水由供水单元80 供给至贮留箱60而蓄于贮水桶210内。然而，也可以是，未混入洗涤剂的水由供水单元80供给至贮留箱60而蓄于贮水桶210内。
而且，在上述实施方式中，自动投入机构90也可以采用能自动投入洗涤剂和柔顺剂的结构。在该情况下，设有容纳液体柔顺剂的柔顺剂盒。柔顺剂盒经由供给管和三通阀与副供水路94相连。在漂洗过程时，通过与来自洗涤剂盒91的洗涤剂的供给相同的工作，向洗涤脱水桶22内供给柔顺剂盒内的柔顺剂。
而且，供水单元80和自动投入机构90的结构不限于上述实施方式。供水单元80只要能向洗涤脱水桶22和贮留箱60进行供水，可以是任意结构，自动投入机构90只要能向洗涤脱水桶22和贮留箱60供给洗涤剂，可以是任意结构。
而且，在上述实施方式中，超声波洗净装置50设置于全自动洗衣机1。然而，超声波洗净装置50也可以设置于全自动洗衣机1以外的洗衣机，例如滚筒洗衣机。此外，超声波洗净装置50也可以设置于例如具有烘干功能的全自动洗干一体机、滚筒式洗干一体机。在滚筒洗衣机和滚筒式洗干一体机中，外桶内配置有作为内桶的滚筒。
此外，本发明的实施方式能在技术方案所示的技术构思的范围内适当地进行各种变更。

Claims (5)

  1. 一种洗衣机，其特征在于，具备：
    贮水桶，可蓄水，被洗净物浸泡在该水中；
    超声波发生体，产生超声波；
    供水部，供给要蓄于所述贮水桶的水；
    温度检测部，配置于所述超声波发生体的周围；以及
    控制部，控制所述超声波发生体和所述供水部，
    所述超声波发生体与浸透至被洗净物的水接触，使超声波向该水传播，
    所述控制部在所述贮水桶内蓄有水的状态下使所述超声波发生体工作，基于在所述超声波发生体工作中由所述温度检测部检测到的温度，使所述供水部进行供水以向所述贮水桶内补给水。
  2. 根据权利要求1所述的洗衣机，其特征在于，
    所述控制部在所述超声波发生体工作前或工作初期通过所述温度检测部来检测基准温度，根据在所述超声波发生体工作中由所述温度检测部检测到的温度，求出相对于所述基准温度的温度上升值，在所述温度上升值超过阈值的情况下，使所述供水部进行供水。
  3. 根据权利要求1或2所述的洗衣机，其特征在于，
    还具备：贮留部，蓄留要向所述贮水桶供给的水，
    所述供水部向所述贮留部供给水，
    当所述贮水桶内的水减少时，从所述贮留部向所述贮水桶补给水，
    所述控制部基于在所述超声波发生体工作中由所述温度检测部检测到的温度，使所述供水部向所述贮留部进行供水。
  4. 根据权利要求3所述的洗衣机，其特征在于，
    所述控制部基于从所述超声波发生体开始工作起经过了规定时间，使所述供水部向所述贮留部进行供水。
  5. 根据权利要求4所述的洗衣机，其特征在于，
    还具备：洗涤剂供给部，供给向要蓄留至所述贮留部的水中混入的洗涤剂，
    所述控制部控制所述洗涤剂供给部，使得基于所述规定时间的经过而向所述贮留部供水时的洗涤剂的供给量比基于由所述温度检测部检测到的温度而向所述贮留部供水时的所述洗涤剂的供给量少。
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